31480190 has 64 divisors (see below), whose sum is σ = 68014080. Its totient is φ = 10264320.

The previous prime is 31480129. The next prime is 31480201. The reversal of 31480190 is 9108413.

It is a super-2 number, since 2×31480190² = 1982004724872200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193049 + ... + 193211.

It is an arithmetic number, because the mean of its divisors is an integer number (1062720).

Almost surely, 2^31480190 is an apocalyptic number.

31480190 is an abundant number, since it is smaller than the sum of its proper divisors (36533890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31480190 is a wasteful number, since it uses less digits than its factorization.

31480190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 31480190 is about 5610.7209875381. The cubic root of 31480190 is about 315.7517611933.

The spelling of 31480190 in words is "thirty-one million, four hundred eighty thousand, one hundred ninety".